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since Mar 25, 2003
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I'm new to UML. I have a question on Use Case diagram.
There are 2 kind of HR staff. The first one is manager, and the other is officer.
Manager can add, delete, and modify staff record.
Officer can modify staff record and generate report.
Then, how many actor are there?
1 actor named HR staff?
2 actors: HR Manager and HR Officer?
Also, in my project, there are many sub-functions for different kind of user. If I use the second method, this cause many actors that may have overlap function. (ie. HR Manager and HR Officer, both have the function of modify staff record)
Any suggestion!? Thank you!